tìm lỗi sai:
1. it's no use to advise him to stop smoking.(câu này không sai nhé bạn)
2. living in the city ís more comfortably than in the country
==>comfortable
3.they aren't used to walk in the rain
==>walking
4.the lesson is too difficult for us to understand it
==>bỏ nhé bạn
1. lỗi sai ở: it's no => it didn't
2. lỗi sai: comfortably => comfortable.
3.lỗi sai: aren't used to =>didn't use to
mình k chắc nhưng bạn cứ tham khảo nhé